High Voltaged Insulated Alumina Ceramics

Name:Insulated Alumina Ceramics Structure:Polycrystal Size:Customized Alumina content:95% or 99% Certificate:ISO9001-2008

Specifications:  

  1.Wear-resistant

  2.Desirable surface fineness

  3.OEM/OPM Offered

  4.Factory Directly

Productive Technology:

    Wearable ceramic is the special corundum ceramic that has been sintered under 1800°C with the 

main raw material of Al2O3 and flux of rare metal oxide.Using the high strength organic/inorganic bond 

to felt together, and then grinding to the size as drawing required.

 Advantages:

   1.High temperature

   2.Good insulation

   3.High strength

   4.Precision Process

 

Alumina Ceramics Properties
	Unit	95%	99%
Density	g/cm3	3.6	3.8
Water absorption	%	<0.4	<0.2
Firing temperature	°C	1600	1800
Hardness	HRA	70	80
Coefficientoflinearexpansion	*10-6/°C	5.5	5.3
Dielectric constant		9	10.5
Volume resistivity	Ω·cm	—	1013
Breakdownvoltage	KV/mm	14	15
Breaking strength	Mpa	250	300

 

 

 

 

 

 

 

 

High Voltaged Insulated Alumina Ceramics